C++ EMUFILE::fwrite方法代码示例

static void DEBUG_dumpMemory_fill(EMUFILE &fp, u32 size)
{
	static std::vector<u8> buf;
	buf.resize(size);
	memset(&buf[0],0,size);
	fp.fwrite(&buf[0],size);
}

	void writeSRAM(const u32 pos, const u8 *data, u32 size) 
	{
		if (!fSRAM)
			return;

		fSRAM->fseek(pos, SEEK_SET);

		u32 writed = size;
		fSRAM->fwrite(data, size);
		fSRAM->fflush();
	}

void DEBUG_dumpMemory(EMUFILE &fp)
{
	fp.fseek(0x000000,SEEK_SET); fp.fwrite(MMU.MAIN_MEM,0x800000); //arm9 main mem (8192K)
	fp.fseek(0x900000,SEEK_SET); fp.fwrite(MMU.ARM9_DTCM,0x4000); //arm9 DTCM (16K)
	fp.fseek(0xA00000,SEEK_SET); fp.fwrite(MMU.ARM9_ITCM,0x8000); //arm9 ITCM (32K)
	fp.fseek(0xB00000,SEEK_SET); fp.fwrite(MMU.ARM9_LCD,0xA4000); //LCD mem 656K
	fp.fseek(0xC00000,SEEK_SET); fp.fwrite(MMU.ARM9_VMEM,0x800); //OAM
	fp.fseek(0xD00000,SEEK_SET); fp.fwrite(MMU.ARM7_ERAM,0x10000); //arm7 WRAM (64K)
	fp.fseek(0xE00000,SEEK_SET); fp.fwrite(MMU.ARM7_WIRAM,0x10000); //arm7 wifi RAM ?
	fp.fseek(0xF00000,SEEK_SET); fp.fwrite(MMU.SWIRAM,0x8000); //arm9/arm7 shared WRAM (32KB)
}

void BackupDevice::flush()
{
	//never use save files if we are in movie mode
	if(isMovieMode) return;

	if (filename.length() == 0) return;

	EMUFILE* outf = new EMUFILE_FILE(filename.c_str(),"wb");
	if(!outf->fail())
	{
		if(data.size()>0)
			outf->fwrite(&data[0],data.size());
		
		//write the footer. we use a footer so that we can maximize the chance of the
		//save file being recognized as a raw save file by other emulators etc.
		
		//first, pad up to the next largest known save size.
		u32 size = data.size();
		u32 padSize = pad_up_size(size);

		for(u32 i=size;i<padSize;i++)
			outf->fputc(kUninitializedSaveDataValue);

		//this is just for humans to read
		outf->fprintf("|<--Snip above here to create a raw sav by excluding this DeSmuME savedata footer:");

		//and now the actual footer
		write32le(size,outf); //the size of data that has actually been written
		write32le(padSize,outf); //the size we padded it to
		write32le(info.type,outf); //save memory type
		write32le(addr_size,outf);
		write32le(info.size,outf); //save memory size
		write32le(0,outf); //version number
		outf->fprintf("%s", kDesmumeSaveCookie); //this is what we'll use to recognize the desmume format save

		delete outf;
	}
	else
	{
		delete outf;
		printf("Unable to open savefile %s\n", filename.c_str());
	}
}

bool FCEUSS_SaveMS(EMUFILE* outstream, int compressionLevel)
{
	// reinit memory_savestate
	// memory_savestate is global variable which already has its vector of bytes, so no need to allocate memory every time we use save/loadstate
	memory_savestate.set_len(0);	// this also seeks to the beginning
	memory_savestate.unfail();

	EMUFILE* os = &memory_savestate;

	uint32 totalsize = 0;

	FCEUPPU_SaveState();
	FCEUSND_SaveState();
	totalsize=WriteStateChunk(os,1,SFCPU);
	totalsize+=WriteStateChunk(os,2,SFCPUC);
	totalsize+=WriteStateChunk(os,3,FCEUPPU_STATEINFO);
	totalsize+=WriteStateChunk(os,31,FCEU_NEWPPU_STATEINFO);
	totalsize+=WriteStateChunk(os,4,FCEUCTRL_STATEINFO);
	totalsize+=WriteStateChunk(os,5,FCEUSND_STATEINFO);
	if(FCEUMOV_Mode(MOVIEMODE_PLAY|MOVIEMODE_RECORD|MOVIEMODE_FINISHED))
	{
		totalsize+=WriteStateChunk(os,6,FCEUMOV_STATEINFO);

		//MBG TAS Editor HACK HACK HACK!
		//do not save the movie state if we are in Taseditor! That would be a huge waste of time and space!
		if(!FCEUMOV_Mode(MOVIEMODE_TASEDITOR))
		{
			os->fseek(5,SEEK_CUR);
			int size = FCEUMOV_WriteState(os);
			os->fseek(-(size+5),SEEK_CUR);
			os->fputc(7);
			write32le(size, os);
			os->fseek(size,SEEK_CUR);

			totalsize += 5 + size;
		}
	}
	// save back buffer
	{
		extern uint8 *XBackBuf;
		uint32 size = 256 * 256 + 8;
		os->fputc(8);
		write32le(size, os);
		os->fwrite((char*)XBackBuf,size);
		totalsize += 5 + size;
	}

	if(SPreSave) SPreSave();
	totalsize+=WriteStateChunk(os,0x10,SFMDATA);
	if(SPreSave) SPostSave();

	//save the length of the file
	int len = memory_savestate.size();

	//sanity check: len and totalsize should be the same
	if(len != totalsize)
	{
		FCEUD_PrintError("sanity violation: len != totalsize");
		return false;
	}

	int error = Z_OK;
	uint8* cbuf = (uint8*)memory_savestate.buf();
	uLongf comprlen = -1;
	if(compressionLevel != Z_NO_COMPRESSION && (compressSavestates || FCEUMOV_Mode(MOVIEMODE_TASEDITOR)))
	{
		// worst case compression: zlib says "0.1% larger than sourceLen plus 12 bytes"
		comprlen = (len>>9)+12 + len;
		if (compressed_buf.size() < comprlen) compressed_buf.resize(comprlen);
		cbuf = &compressed_buf[0];
		// do compression
		error = compress2(cbuf, &comprlen, (uint8*)memory_savestate.buf(), len, compressionLevel);
	}

bool FCEUSS_SaveMS(EMUFILE* outstream, int compressionLevel)
{
	//a temp memory stream. we'll dump some data here and then compress
	//TODO - support dumping directly without compressing to save a buffer copy

	EMUFILE_MEMORY ms;
	EMUFILE* os = &ms;

	uint32 totalsize = 0;

	FCEUPPU_SaveState();
	FCEUSND_SaveState();
	totalsize=WriteStateChunk(os,1,SFCPU);
	totalsize+=WriteStateChunk(os,2,SFCPUC);
	totalsize+=WriteStateChunk(os,3,FCEUPPU_STATEINFO);
	totalsize+=WriteStateChunk(os,31,FCEU_NEWPPU_STATEINFO);
	totalsize+=WriteStateChunk(os,4,FCEUCTRL_STATEINFO);
	totalsize+=WriteStateChunk(os,5,FCEUSND_STATEINFO);
	if(FCEUMOV_Mode(MOVIEMODE_PLAY|MOVIEMODE_RECORD|MOVIEMODE_FINISHED))
	{
		totalsize+=WriteStateChunk(os,6,FCEUMOV_STATEINFO);

		//MBG tasedit HACK HACK HACK!
		//do not save the movie state if we are in tasedit! that is a huge waste of time and space!
		if(!FCEUMOV_Mode(MOVIEMODE_TASEDIT))
		{
			os->fseek(5,SEEK_CUR);
			int size = FCEUMOV_WriteState(os);
			os->fseek(-(size+5),SEEK_CUR);
			os->fputc(7);
			write32le(size, os);
			os->fseek(size,SEEK_CUR);

			totalsize += 5 + size;
		}
	}
	// save back buffer
	{
		extern uint8 *XBackBuf;
		uint32 size = 256 * 256 + 8;
		os->fputc(8);
		write32le(size, os);
		os->fwrite((char*)XBackBuf,size);
		totalsize += 5 + size;
	}

	if(SPreSave) SPreSave();
	totalsize+=WriteStateChunk(os,0x10,SFMDATA);
	if(SPreSave) SPostSave();

	//save the length of the file
	int len = ms.size();

	//sanity check: len and totalsize should be the same
	if(len != totalsize)
	{
		FCEUD_PrintError("sanity violation: len != totalsize");
		return false;
	}

	int error = Z_OK;
	uint8* cbuf = (uint8*)ms.buf();
	uLongf comprlen = -1;
	if(compressionLevel != Z_NO_COMPRESSION && compressSavestates)
	{
		//worst case compression.
		//zlib says "0.1% larger than sourceLen plus 12 bytes"
		comprlen = (len>>9)+12 + len;
		cbuf = new uint8[comprlen];
		error = compress2(cbuf,&comprlen,(uint8*)ms.buf(),len,compressionLevel);
	}